All in all the Airbnb is great place to stay. The host is very friendly and helpful. The Airbnb itself is quite big and has all described necessities.
As mentioned in the description, the apartment is located in a busy street which is why my only remark is that it is quite noisy, but with the help of ear plugs this is very manageable. On the other side this means that the place is very close to some of the most important sights of Bangkok which is really great.